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排序方式: 共有427条查询结果,搜索用时 15 毫秒
1.
István Pintér János Mátyus Zoltán Czégány Judit Harsányi Marietta Homoki Miklós Kassai Eva Kiss István Kiss Erzsébet Ladányi Lajos Locsey Lajos Major Mihály Misz Lajos Nagy Kálmán Polner Jeno Rédl István Solt Béla Tichy Marietta T?r?k Gábor Varga Gyula Wagner Imre Wórum Béla Zsoldos László Pótó Katalin Dérczy István Wittmann Judit Nagy 《Nephrology, dialysis, transplantation》2004,19(4):840-843
BACKGROUND: The diagnosis of analgesic nephropathy has improved significantly with modern imaging techniques. We reviewed a large portion of the Hungarian dialysis population to obtain additional insight into the problem. METHODS: Twenty-two participating dialysis units enrolled 1400 patients on renal replacement therapy between 1 January 1995 and 1 January 1998. Patients with no known aetiology (n = 284) were interviewed and studied with renal imaging. We assessed the presence of decreased renal mass combined with either bumpy contours, papillary calcification, or both. The subjects studied were interrogated extensively. RESULTS: Our survey suggested analgesic nephropathy in 47 of 1400 patients (3.3%), 3-fold higher than the EDTA database estimate for Hungary. The analgesics most commonly abused were phenacetin-containing mixtures. The driving symptoms were mainly headache and joint pain. Cardiovascular complications were more common than in the rest of the dialysis population, independent of smoking and lipid values (P<0.01). CONCLUSIONS: Phenacetin should be banned. Our study results support the need for longitudinal cohort and case-control studies in Hungary. 相似文献
2.
Lukács L L Szántó G Kassai I Lengyel M M 《Texas Heart Institute journal / from the Texas Heart Institute of St. Luke's Episcopal Hospital, Texas Children's Hospital》1992,19(4):265-269
From January 1966 through December 1985, 29 adolescents and adults underwent surgical repair of a partial atrioventricular septal defect at our institution. The patients included 20 females and 9 males, whose ages ranged from 16 to 47 years (mean, 27.6 +/- 10.1 years). Preoperatively, 24 patients were in New York Heart Association functional class I or II, and 5 were in class III. The pulmonary artery systolic pressure ranged from 22 to 62 mmHg (mean, 38.3 +/- 12.7 mmHg). The pulmonary-to-systemic flow ratio ranged from 1.4 to 2.9 (mean, 2.3 +/- 0.5). Upon left ventriculography, regurgitation through the left atrioventricular valve was trivial or nonexistent in 4 patients (13.8%), mild in 14 (48.3%), moderate in 10 (34.5%), and severe in 1 patient (3.4%). All patients underwent patch closure of the ostium primum defect, and all but 2 underwent partial or complete suturing of the septal commissure. One patient died within 30 days, for a hospital mortality of 3.4%. The follow-up period ranged from 7 to 25 years (mean, 15.2 +/- 5.3 years). Postoperatively, all patients were evaluated with 2-dimensional and Doppler echocardiography. One patient underwent early implantation of a permanent pacemaker for persistent complete heart block. Three patients succumbed to late death 10, 15, and 21 years after operation. Among the 25 long-term survivors, 1 patient required late valve replacement because of severe left atrioventricular valve regurgitation. Nine (37.5%) of the other 24 long-term survivors had little or no regurgitation. Of the 11 patients with moderate-to-severe preoperative left atrioventricular valve regurgitation, 4 had moderate postoperative regurgitation. Seventeen patients had a moderate or severe persistent apical systolic murmur. At the latest follow-up in 1991, 5 (20%) of the 25 long-term survivors had significant arrhythmias. At 25 years, the actuarial survival rate was 78.9% +/- 25.6%. All 25 surviving patients were in New York Heart Association class I or II. The rate of freedom from reoperation was 77.7% +/- 25.9%. We conclude that, in adolescents and adults, correction of a partial atrioventricular septal defect entails little risk and is likely to improve the patient's functional status. Repair of the left atrioventricular valve yields good results, even at long-term follow-up. 相似文献
3.
A Padányi E Gyódi G Sarmay M Réti K Mayer M Kassai G G Petrányi 《Immunology letters》1990,26(2):131-137
The characteristics and functional importance of FcR-blocking antibodies and their production were investigated after immunization with whole blood, "buffy coat" and purified platelets. We studied the presence of FcR-blocking antibody in haemodialyzed, transfused patients waiting for kidney transplantation, and we found strong correlation between the blocking effect and better graft survival. We suggest that this blocking antibody does not attack FcR as primary target. Investigation of blocking activity of ten different immune sera on 50 healthy panel cells showed that target antigen has some polymorphic varieties. On basis of family studies it seems that the target antigen is not linked to HLA haplotype. The blocking effect of sera could be removed by absorption of CD8+ cells, B lymphocytes, platelets and granulocytes, but not with erythrocytes, monocytes, CD8- cells and NK cells. 相似文献
4.
In inguinal hernia repair, different laparoscopic and open techniques of tension-free repair using synthetic meshes have been reported to result in better patient comfort and lower recurrence rates compared with conventional procedures like Shouldice's or Bassini's operation. In comparison with the laparoscopic procedure, open tension-free repair can be performed under local anaesthesia and is less expensive. For these reasons, the recent trend in inguinal hernia surgery, has been towards using an open, mesh-based tensionless repair (Lichtenstein technique). To evaluate and support the widespread use of this technique in Hungary a large, prospective multicentre trial was initiated at 15 March 1999. Prospective registration of 1500 hernia operation using Lichtenstein technique is undertaken that is carried out in 15 hospitals. Postoperative outcome, complications and recurrence is recorded through a five years period. The case presentation and data collection is internet based. Each center participating in the study is connected by internet to the coordinating center and all information concerning this study is sent by this way. This system is able to generate actual statistical data in every moment of the study. 相似文献
5.
Non-contrast-enhanced MR angiography using 3D ECG-synchronized half-Fourier fast spin echo 总被引:2,自引:0,他引:2
Miyazaki M Sugiura S Tateishi F Wada H Kassai Y Abe H 《Journal of magnetic resonance imaging : JMRI》2000,12(5):776-783
A non-contrast-enhanced three-dimensional (3D) magnetic resonance angiography (MRA) technique, which acquires images in a reasonably short scanning time and requires no contrast agent, is developed. An electrocardiographically (ECG) synchronized 3D half-Fourier fast spin-echo (FSE) technique with an appropriate ECG delay time for every slice encoding in 3D terms was used to examine the thoracic and iliac regions in 16 healthy volunteers at both 0.5 and 1.5 T. Prior to each 3D fresh blood imaging (FBI) experiment, an ECG preparation (ECG-prep) scan was acquired, and an appropriate ECG triggering time was selected for 3D FBI acquisition to optimize visualization of the vessel of interest. In the thoracic and abdominal regions, good-quality 3D MRA images were obtained. Furthermore, the weighted subtraction of two images in different phases provides contrast enhancement between arteries and veins. 相似文献
6.
Mehdi Nouraie Fatemeh Hosseinkhah Hassan Brim Behrouz Zamanifekri Duane T. Smoot Hassan Ashktorab 《Digestive diseases and sciences》2010,55(5):1442-1449
Background and Aims
Among the ethnic groups, the age-standardized incidence rate of colorectal cancer (CRC) is highest among African-Americans. The majority of CRC arise from preexisting adenoma. It is shown that 30% of the US adult population has adenomas. The potential risk of malignant transformation in adenomas differs by specific pathologic and clinical characteristics that we aimed to study in AAs. 相似文献7.
Kalsbeek A Buijs RM van Schaik R Kaptein E Visser TJ Doulabi BZ Fliers E 《Endocrinology》2005,146(3):1418-1427
Type II deiodinase (D2) plays a key role in regulating thyroid hormone-dependent processes in, among others, the central nervous system (CNS) by accelerating the intracellular conversion of T4 into active T3. Just like the well-known daily rhythm of the hormones of the hypothalamo-pituitary-thyroid axis, D2 activity also appears to show daily variations. However, the mechanisms involved in generating these daily variations, especially in the CNS, are not known. Therefore, we decided to investigate the role the master biological clock, located in the hypothalamus, plays with respect to D2 activity in the rat CNS as well as the role of one of its main hormonal outputs, i.e. plasma corticosterone. D2 activity showed a significant daily rhythm in the pineal and pituitary gland as well as hypothalamic and cortical brain tissue, albeit with a different timing of its acrophase in the different tissues. Ablation of the biological clock abolished the daily variations of D2 activity in all four tissues studied. The main effect of the knockout of the suprachiasmatic nuclei (SCN) was a reduction of nocturnal peak levels in D2 activity. Moreover, contrary to previous observations in SCN-intact animals, in SCN-lesioned animals, the decreased levels of D2 activity are accompanied by decreased plasma levels of the thyroid hormones, suggesting that the SCN separately stimulates D2 activity as well as the hypothalamo-pituitary-thyroid axis. 相似文献
8.
Fontana S Kremer Hovinga JA Studt JD Alberio L Lämmle B Taleghani BM 《Seminars in hematology》2004,41(1):48-59
Based on clinical studies daily plasma exchange (PE) has become the first-choice therapy for thrombotic thrombocytopenic purpura (TTP) since 1991. Recent findings may explain its effectiveness, which particularly may include supply of ADAMTS-13 and removal of anti-ADAMTS-13 autoantibodies and unusually large von Willebrand factor (VWF) multimers. The most preferable PE regimens as well as replacement fluids are discussed and treatment-related adverse reactions are summarized. Proposals for a potential reduction of their frequency and for improvement of treatment efficiency are given. These suggestions are partially based on the experience of our institution in adult patients with severe ADAMTS-13 deficiency (<5% activity), and include (1) continuous calcium-gluconate infusion during PE in order to reduce citrate-related adverse reactions; (2) the evaluation of solvent/detergent-treated (S/D) plasma as replacement fluid in order to reduce adverse events due to fresh frozen plasma (FFP); (3) the evaluation of immunoadsorption in order to increase procedural efficiency in autoantibody removal; and (4) the substitution of ADAMTS-13 by means of recombinant drug instead of plasma. 相似文献
9.
James Reigle Dina Secic Jacek Biesiada Collin Wetzel Behrouz Shamsaei Johnson Chu Yuanwei Zang Xiang Zhang Nicholas J. Talbot Megan E. Bischoff Yongzhen Zhang Charuhas V. Thakar Krishnanath Gaitonde Abhinav Sidana Hai Bui John T. Cunningham Qing Zhang Laura S. Schmidt W. Marston Linehan Mario Medvedovic David R. Plas Julio A. Landero Figueroa Jarek Meller Maria F. Czyzyk-Krzeska 《The Journal of clinical investigation》2021,131(1)
10.
Efrem Gebremedhin Carolyn E. Behrendt Ryotaro Nakamura Pablo Parker Behrouz Salehian 《Inflammation》2013,36(1):177-185
Stress hyperglycemia and acute graft-versus-host disease (GVHD), the major early complication of hematopoietic stem cell transplantation (HSCT), are both associated with excessive release of inflammatory cytokines. We investigated whether new-onset hyperglycemia immediately after HSCT predicts acute GVHD. We studied nondiabetic adult recipients of human leukocyte antigen-matched HSCT (peripheral blood stem cells) for acute leukemia. Using mean morning serum glucose on Days 1–10, we classified hyperglycemia as: mild (6.11–8.33 mmol/L), moderate (8.34–9.98), and severe (minimum of 9.99). Subjects who were GVHD‐free on Day 10 were followed during Days 11–100 for grades II–IV acute GVHD or competing event. Evaluation utilized cumulative incidence-based proportional hazards regression. Subjects (n?=?328) were age 18–74, median of 49 years. Per body mass index (BMI)—25.0 % were obese (BMI, 30–48), 33.8 % overweight (25 to <30), 30.8 % normal weight (21 to <25), and 10.4 % lean (18 to <21). Mild, moderate, or severe hyperglycemia occurred during Days 1–10 in 50.0, 21.3, and 16.8 % of subjects, respectively. Cumulative incidence on Day 100 was 44.8 (±2.8)?% acute GVHD and 7.9 (±1.5)?% competing event. Among normal-to-overweight subjects (n?=?212), severe hyperglycemia developed in 14.2 % (n?=?30) and more than doubled the risk of acute GVHD (hazards ratio, 2.71; 95 % CI, 1.58–4.65—adjusted for donor/recipient characteristics, prophylactic regimen, and mucositis). In contrast, among obese subjects (n?=?82), severe hyperglycemia developed in 30.5 % (n?=?25) but did not significantly affect risk of GVHD. (No lean subjects (n?=?34) developed severe hyperglycemia.) Hyperglycemia that was less than severe had an effect indistinguishable from normoglycemia. In nondiabetic patients, severe hyperglycemia immediately after allogeneic HSCT indicates increased likelihood of acute GVHD. This association is absent in obese patients, who may be primed by obesity-induced inflammation to develop severe hyperglycemia even without experiencing the cytokine storm that is essential to GVHD pathogenesis. 相似文献